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Primary Reference Standard

When precision matters most, start with the highest benchmark—Primary Reference Standards from Lancetech Ltd are essential for achieving traceable and reproducible results in analytical testing. These ultra-pure substances serve as the definitive reference point for calibrating instruments, verifying methods, and producing secondary standards.


Ideal for pharmaceutical, environmental, and chemical laboratories, our primary standards ensure compliance with global regulatory requirements and support accurate quantification across a wide range of applications. Each standard is backed by detailed documentation and traceability to certified bodies, ensuring your data integrity from the first measurement onward.


Explore our range of primary reference materials and set a solid foundation for your lab’s analytical success.

Pentamidine isethionate salt 1 g
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Manufacturer: TOKU-E Item Number: P114-1G
Pentamidine isethionate salt 1 g CAS number 140-64-7 and purity ≥98%...
Price excludes taxes and shipping charges. Save -10%
£137.28 £152.53
Pentamidine isethionate salt 250 mg
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Manufacturer: TOKU-E Item Number: P114-250MG
Pentamidine isethionate salt 250 mg CAS number 140-64-7 and purity ≥98%...
Price excludes taxes and shipping charges. Save -10%
£68.88 £76.53
Pentostatin 1 mg
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Manufacturer: TOKU-E Item Number: P076-1MG
Pentostatin 1 mg CAS number 53910-25-1 and purity >98% by HPLC...
Price excludes taxes and shipping charges. Save -10%
£221.57 £246.19
Pentostatin 5 mg
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Manufacturer: TOKU-E Item Number: P076-5MG
Pentostatin 5 mg CAS number 53910-25-1 and purity >98% by HPLC...
Price excludes taxes and shipping charges. Save -10%
£771.65 £857.39
PEPP 5 mL
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Manufacturer: TOKU-E Item Number: P109-5ML
PEPP 5 mL CAS number nan and purity nan...
Price excludes taxes and shipping charges. Save -10%
£55.87 £62.08
Pepstatin A 0.1 mg
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Manufacturer: TOKU-E Item Number: P155-0.1MG
Pepstatin A 0.1 mg CAS number 26305-03-3 and purity >95% by HPLC...
Price excludes taxes and shipping charges. Save -10%
£61.17 £67.97
Pepstatin A 0.5 mg
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Manufacturer: TOKU-E Item Number: P155-0.5MG
Pepstatin A 0.5 mg CAS number 26305-03-3 and purity >95% by HPLC...
Price excludes taxes and shipping charges. Save -10%
£211.46 £234.95
Permethrin 10 mg
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Manufacturer: TOKU-E Item Number: P106-10MG
Permethrin 10 mg CAS number 52645-53-1 and purity ≥95%...
Price excludes taxes and shipping charges. Save -10%
£23.12 £25.69
Permethrin 50 mg
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Manufacturer: TOKU-E Item Number: P106-50MG
Permethrin 50 mg CAS number 52645-53-1 and purity ≥95%...
Price excludes taxes and shipping charges. Save -10%
£57.80 £64.22
Pestalotin 0.5 mg
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Manufacturer: TOKU-E Item Number: P077-0.5MG
Pestalotin 0.5 mg CAS number 34565-32-7 and purity >99% by HPLC...
Price excludes taxes and shipping charges. Save -10%
£243.73 £270.81
Pestalotin 2.5 mg
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Manufacturer: TOKU-E Item Number: P077-2.5MG
Pestalotin 2.5 mg CAS number 34565-32-7 and purity >99% by HPLC...
Price excludes taxes and shipping charges. Save -10%
£849.68 £944.09
Pexiganan acetate 5 mg
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Manufacturer: TOKU-E Item Number: P115-5MG
Pexiganan acetate 5 mg CAS number 172820-23-4 and purity ≥98%...
Price excludes taxes and shipping charges. Save -10%
£257.22 £285.80
PGLa 5mg
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Manufacturer: TOKU-E Item Number: P104-5MG
PGLa 5mg CAS number 102068-15-5 and purity ≥98%...
Price excludes taxes and shipping charges. Save -10%
£513.47 £570.52
Phenelfamycin E 1 mg
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Manufacturer: TOKU-E Item Number: P078-1MG
Phenelfamycin E 1 mg CAS number 114451-31-9 and purity >95% by HPLC...
Price excludes taxes and shipping charges. Save -10%
£261.55 £290.61
Phenelfamycin E 5 mg
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Manufacturer: TOKU-E Item Number: P078-5MG
Phenelfamycin E 5 mg CAS number 114451-31-9 and purity >95% by HPLC...
Price excludes taxes and shipping charges. Save -10%
£912.78 £1,014.20
Phenylpyropene A 1 mg
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Manufacturer: TOKU-E Item Number: P149-1MG
Phenylpyropene A 1 mg CAS number 189564-20-3 and purity >95% by HPLC...
Price excludes taxes and shipping charges. Save -10%
£210.49 £233.88
Phenylpyropene A 5 mg
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Manufacturer: TOKU-E Item Number: P149-5MG
Phenylpyropene A 5 mg CAS number 189564-20-3 and purity >95% by HPLC...
Price excludes taxes and shipping charges. Save -10%
£733.60 £815.11
Phloroglucinol 100 g
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Manufacturer: TOKU-E Item Number: P079-100G
Phloroglucinol 100 g CAS number 108-73-6 and purity ≥99% by HPLC...
Price excludes taxes and shipping charges. Save -10%
£95.37 £105.97
Phloroglucinol 25 g
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Manufacturer: TOKU-E Item Number: P079-25G
Phloroglucinol 25 g CAS number 108-73-6 and purity ≥99% by HPLC...
Price excludes taxes and shipping charges. Save -10%
£35.16 £39.07
Phomopsin A 1 mg
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Manufacturer: TOKU-E Item Number: P080-1MG
Phomopsin A 1 mg CAS number 64925-80-0 and purity >98% by HPLC...
Price excludes taxes and shipping charges. Save -10%
£328.99 £365.54
Phomopsin A 5 mg
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Manufacturer: TOKU-E Item Number: P080-5MG
Phomopsin A 5 mg CAS number 64925-80-0 and purity >98% by HPLC...
Price excludes taxes and shipping charges. Save -10%
£1,148.33 £1,275.92
Phomopsinamine 0.1 mg
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Manufacturer: TOKU-E Item Number: P156-0.1MG
Phomopsinamine 0.1 mg CAS number 89085-54-1 and purity >95% by HPLC...
Price excludes taxes and shipping charges. Save -10%
£149.81 £166.45
Phomopsinamine 0.5 mg
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Manufacturer: TOKU-E Item Number: P156-0.5MG
Phomopsinamine 0.5 mg CAS number 89085-54-1 and purity >95% by HPLC...
Price excludes taxes and shipping charges. Save -10%
£523.11 £581.23
Picloram 25 g
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Manufacturer: TOKU-E Item Number: P043-25G
Picloram 25 g CAS number 1918-02-1 and purity ≥95%...
Price excludes taxes and shipping charges. Save -10%
£409.91 £455.46
Picloram 5 g
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Manufacturer: TOKU-E Item Number: P043-5G
Picloram 5 g CAS number 1918-02-1 and purity ≥95%...
Price excludes taxes and shipping charges. Save -10%
£113.19 £125.77
Piericidin A 1 mg
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Manufacturer: TOKU-E Item Number: P081-1MG
Piericidin A 1 mg CAS number 2738-64-9 and purity >95% by HPLC...
Price excludes taxes and shipping charges. Save -10%
£190.26 £211.40
Piericidin A 5 mg
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Manufacturer: TOKU-E Item Number: P081-5MG
Piericidin A 5 mg CAS number 2738-64-9 and purity >95% by HPLC...
Price excludes taxes and shipping charges. Save -10%
£658.46 £731.62
Pikromycin 0.5 mg
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Manufacturer: TOKU-E Item Number: P157-0.5MG
Pikromycin 0.5 mg CAS number 19721-56-3 and purity >95% by HPLC...
Price excludes taxes and shipping charges. Save -10%
£149.81 £166.45
Pikromycin 2.5 mg
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Manufacturer: TOKU-E Item Number: P157-2.5MG
Pikromycin 2.5 mg CAS number 19721-56-3 and purity >95% by HPLC...
Price excludes taxes and shipping charges. Save -10%
£523.11 £581.23
Piliformic acid 0.5 mg
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Manufacturer: TOKU-E Item Number: P158-0.5MG
Piliformic acid 0.5 mg CAS number 98985-76-3 and purity >95% by HPLC...
Price excludes taxes and shipping charges. Save -10%
£179.67 £199.63
Piliformic acid 2.5 mg
Actual product may differ from image
Manufacturer: TOKU-E Item Number: P158-2.5MG
Piliformic acid 2.5 mg CAS number 98985-76-3 and purity >95% by HPLC...
Price excludes taxes and shipping charges. Save -10%
£627.63 £697.37
Pimecrolimus 100 mg
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Manufacturer: TOKU-E Item Number: P083-100MG
Pimecrolimus 100 mg CAS number 137071-32-0 and purity 98.0% ~ 102.0% (anhydrous basis)...
Price excludes taxes and shipping charges. Save -10%
£181.59 £201.77
Pimecrolimus 500 mg
Actual product may differ from image
Manufacturer: TOKU-E Item Number: P083-500MG
Pimecrolimus 500 mg CAS number 137071-32-0 and purity 98.0% ~ 102.0% (anhydrous basis)...
Price excludes taxes and shipping charges. Save -10%
£989.37 £1,099.30
Pimprinine 1 mg
Actual product may differ from image
Manufacturer: TOKU-E Item Number: P084-1MG
Pimprinine 1 mg CAS number 13640-26-1 and purity >95% by HPLC...
Price excludes taxes and shipping charges. Save -10%
£243.73 £270.81
Pimprinine 5 mg
Actual product may differ from image
Manufacturer: TOKU-E Item Number: P084-5MG
Pimprinine 5 mg CAS number 13640-26-1 and purity >95% by HPLC...
Price excludes taxes and shipping charges. Save -10%
£849.68 £944.09
Pipemidic acid 10 g
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Manufacturer: TOKU-E Item Number: P009-10G
Pipemidic acid 10 g CAS number 51940-44-4 and purity (On Dried Basis): ≥98.5%...
Price excludes taxes and shipping charges. Save -10%
£79.48 £88.31
Pipemidic acid 100 g
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Manufacturer: TOKU-E Item Number: P009-100G
Pipemidic acid 100 g CAS number 51940-44-4 and purity (On Dried Basis): ≥98.5%...
Price excludes taxes and shipping charges. Save -10%
£495.17 £550.19
Piperacillin 1 g
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Manufacturer: TOKU-E Item Number: P017-1G
Piperacillin 1 g CAS number 61477-96-1 and purity (On Dried Basis): 96.0-103.0%...
Price excludes taxes and shipping charges. Save -10%
£119.46 £132.73
Piperacillin 500 mg
Actual product may differ from image
Manufacturer: TOKU-E Item Number: P017-500MG
Piperacillin 500 mg CAS number 61477-96-1 and purity (On Dried Basis): 96.0-103.0%...
Price excludes taxes and shipping charges. Save -10%
£84.78 £94.20
Piperacillin Sodium 1 g
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Manufacturer: TOKU-E Item Number: P010-1G
Piperacillin Sodium 1 g CAS number 59703-84-3 and purity (On Dried Basis): 863 to 1007 µg/mg...
Price excludes taxes and shipping charges. Save -10%
£91.52 £101.69
Piperacillin Sodium 10 g
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Manufacturer: TOKU-E Item Number: P010-10G
Piperacillin Sodium 10 g CAS number 59703-84-3 and purity (On Dried Basis): 863 to 1007 µg/mg...
Price excludes taxes and shipping charges. Save -10%
£500.46 £556.07
Piperacillin Sodium 5 g
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Manufacturer: TOKU-E Item Number: P010-5G
Piperacillin Sodium 5 g CAS number 59703-84-3 and purity (On Dried Basis): 863 to 1007 µg/mg...
Price excludes taxes and shipping charges. Save -10%
£363.19 £403.54
Piperafizine A 1 mg
Actual product may differ from image
Manufacturer: TOKU-E Item Number: P087-1MG
Piperafizine A 1 mg CAS number 130603-59-7 and purity >99% by HPLC...
Price excludes taxes and shipping charges. Save -10%
£243.73 £270.81
Piperafizine A 5 mg
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Manufacturer: TOKU-E Item Number: P087-5MG
Piperafizine A 5 mg CAS number 130603-59-7 and purity >99% by HPLC...
Price excludes taxes and shipping charges. Save -10%
£849.68 £944.09
Pirarubicin 10 mg
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Manufacturer: TOKU-E Item Number: P117-10MG
Pirarubicin 10 mg CAS number 72496-41-4 and purity ≥97.5 % (HPLC)...
Price excludes taxes and shipping charges. Save -10%
£116.57 £129.52
Pirarubicin 25 mg
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Manufacturer: TOKU-E Item Number: P117-25MG
Pirarubicin 25 mg CAS number 72496-41-4 and purity nan...
Price excludes taxes and shipping charges. Save -10%
£259.15 £287.94
Pirlimycin 1 mg
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Manufacturer: TOKU-E Item Number: P086-1MG
Pirlimycin 1 mg CAS number 79548-73-5 and purity >99% by HPLC...
Price excludes taxes and shipping charges. Save -10%
£175.33 £194.81
Pirlimycin 5 mg
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Manufacturer: TOKU-E Item Number: P086-5MG
Pirlimycin 5 mg CAS number 79548-73-5 and purity >99% by HPLC...
Price excludes taxes and shipping charges. Save -10%
£610.29 £678.10
Pirlimycin Hydrochloride 1 mg
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Manufacturer: TOKU-E Item Number: P088-1MG
Pirlimycin Hydrochloride 1 mg CAS number 78822-40-9 and purity >95% by HPLC...
Price excludes taxes and shipping charges. Save -10%
£134.39 £149.32
Pirlimycin Hydrochloride 5 mg
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Manufacturer: TOKU-E Item Number: P088-5MG
Pirlimycin Hydrochloride 5 mg CAS number 78822-40-9 and purity >95% by HPLC...
Price excludes taxes and shipping charges. Save -10%
£456.63 £507.37
Pitavastatin Calcium 10 mg
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Manufacturer: TOKU-E Item Number: P132-10MG
Pitavastatin Calcium 10 mg CAS number 147526-32-7 and purity ≥99%...
Price excludes taxes and shipping charges. Save -10%
£98.26 £109.18
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